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SoBumpMap(3) | Coin | SoBumpMap(3) |
NAME¶
SoBumpMap - The SoBumpMap class is used to map a bump map onto subsequent shapes. SoBumpMap has support for two types of maps. If the image is a three component (RGB) image, it will be treated as a normal map, where the red image component equals the X normal component, green equals Y, and blue is Z. See http://www.paulsprojects.net/tutorials/simplebump/simplebump.html for a nice introduction about bump mapping and normal maps.SYNOPSIS¶
#include <Inventor/nodes/SoBumpMap.h> Inherits SoNode.Public Types¶
enum Wrap { REPEAT = SoMultiTextureImageElement::REPEAT, CLAMP = SoMultiTextureImageElement::CLAMP }
Public Member Functions¶
virtual SoType getTypeId (void) const
Static Public Member Functions¶
static SoType getClassTypeId (void)
Public Attributes¶
SoSFString filename
Protected Member Functions¶
virtual const SoFieldData * getFieldData (void) const
Static Protected Member Functions¶
static const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members¶
Detailed Description¶
The SoBumpMap class is used to map a bump map onto subsequent shapes. SoBumpMap has support for two types of maps. If the image is a three component (RGB) image, it will be treated as a normal map, where the red image component equals the X normal component, green equals Y, and blue is Z. See http://www.paulsprojects.net/tutorials/simplebump/simplebump.html for a nice introduction about bump mapping and normal maps.BumpMap { filename '' image 0 0 0 wrapS REPEAT wrapT REPEAT }Since:
Coin 2.2
Member Enumeration Documentation¶
enum SoBumpMap::Wrap¶
Enumeration of wrapping strategies which can be used when the bump map doesn't cover the full extent of the geometry. Enumerator:- REPEAT
- Repeat bump map when coordinate is not between 0 and 1.
- CLAMP
- Clamp coordinate between 0 and 1.
Constructor & Destructor Documentation¶
SoBumpMap::SoBumpMap (void)¶
Constructor.SoBumpMap::~SoBumpMap () [protected], [virtual]¶
Destructor. Frees up internal resources used to store texture image data.Member Function Documentation¶
SoType SoBumpMap::getTypeId (void) const [virtual]¶
Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and 'downward' casting. Usage example:void foo(SoNode * node) { if (node->getTypeId() == SoFile::getClassTypeId()) { SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type } }For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on. For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups. Implements SoBase.
const SoFieldData ** SoBumpMap::getFieldDataPtr (void) [static], [protected]¶
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. Reimplemented from SoNode.const SoFieldData * SoBumpMap::getFieldData (void) const [protected], [virtual]¶
Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL. Reimplemented from SoFieldContainer.void SoBumpMap::doAction (SoAction *action) [virtual]¶
This function performs the typical operation of a node for any action. Reimplemented from SoNode.void SoBumpMap::GLRender (SoGLRenderAction *action) [virtual]¶
Action method for the SoGLRenderAction. This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method. Reimplemented from SoNode.void SoBumpMap::callback (SoCallbackAction *action) [virtual]¶
Action method for SoCallbackAction. Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph. Reimplemented from SoNode.void SoBumpMap::rayPick (SoRayPickAction *action) [virtual]¶
Action method for SoRayPickAction. Checks the ray specification of the action and tests for intersection with the data of the node. Nodes influencing relevant state variables for how picking is done also overrides this method. Reimplemented from SoNode.SbBool SoBumpMap::readInstance (SoInput *in, unsigned shortflags) [protected], [virtual]¶
This method is mainly intended for internal use during file import operations. It reads a definition of an instance from the input stream in. The input stream state points to the start of a serialized / persistant representation of an instance of this class type. TRUE or FALSE is returned, depending on if the instantiation and configuration of the new object of this class type went ok or not. The import process should be robust and handle corrupted input streams by returning FALSE. flags is used internally during binary import when reading user extension nodes, group nodes or engines. Reimplemented from SoNode.void SoBumpMap::notify (SoNotList *l) [protected], [virtual]¶
Notifies all auditors for this instance when changes are made. Reimplemented from SoNode.Member Data Documentation¶
SoSFString SoBumpMap::filename¶
Bump map (or normal map) filename, referring to a file on disk in a supported image bitmap format. See SoBumpMap::filename for more information.SoSFImage SoBumpMap::image¶
Inline image data. Defaults to contain an empty bump map.SoSFEnum SoBumpMap::wrapS¶
Wrapping strategy for the S coordinate when the bump map is narrower than the object to map onto. Default value is SoBumpMap::REPEAT.SoSFEnum SoBumpMap::wrapT¶
Wrapping strategy for the T coordinate when the bump map is shorter than the object to map onto. Default value is SoBumpMap::REPEAT.Author¶
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